cs-lab34/main.cpp

#include <iostream>
#include <vector>

using namespace std;

const size_t SCREEN_WIDTH = 80;
const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
struct Input {
    vector<double> numbers;
    size_t bin_count{};
    };

Input
input_data(){
    Input in;
    size_t number_count;
    cerr << "Enter numbers count: ";
    cin >> number_count;
    in.numbers.resize(number_count);

    cerr << "Enter numbers: ";
    for (size_t i = 0; i < number_count; i++) {
        cin >> in.numbers[i];
    }
    cerr << "Enter bin count: ";
    cin >> in.bin_count;

    return in;
    }

void
find_minmax(const vector<double>& numbers, double& min, double& max){
    min = numbers[0];
    max = numbers[0];
    for (double x : numbers)
    {
        if (x < min)
        {
            min = x;
        }
        else if (x > max)
        {
            max = x;
        }
    }
}

vector <size_t>
make_histogram(const vector<double>& numbers, double bin_count){
    double min, max;
    find_minmax(numbers, min, max);
    double bin_size = (max - min) / bin_count; //ðàçìåð êîðçèíû
    vector<size_t> binss(bin_count);
    size_t number_count = numbers.size();
    //çàïîëíåíèå ìàññèâà áèíñ
    for (size_t i = 0; i < number_count; i++)
    {
        bool found = false;
        for (size_t j = 0; (j < bin_count - 1) && !found; j++)
        {
            auto lo = min + j * bin_size;
            auto hi = min + (j + 1) * bin_size;
            if ((lo <= numbers[i]) && (numbers[i] < hi))
            {
                binss[j]++;
                found = true;
            }
        }
        if (!found)
        {
            binss[bin_count - 1]++;
        }
    }
    return binss;
}

void
show_histogram_text(const vector<size_t>& bins, double bin_count){
double max_count;
    //ìàêñèìàäáíîå êîëâî ÷èñåë â êîðçèíå ñðåäè âñåõ êîðçèí
    max_count = bins[0];
    for (size_t i = 0; i < bin_count; i++)
    {
        if (bins[i] > max_count)
        {
            max_count = bins[i];
        }
    }

    //âûâîä ñ âûðàâíèâàíèåì è ìàñøòàáèðîâàíèåì
    for (size_t i = 0; i < bin_count; i++)
    {
        size_t height;
        if (max_count <= MAX_ASTERISK)
        {
            height = bins[i];
        }
        else
        {
            height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
        }

        if (bins[i] < 10){
                cout << " ";
        }
        if (bins[i] < 100){
                cout << " ";
        }
        cout << bins[i]  << "|";
        for (size_t j = 0; j < height; j++)
        {
            cout << "*";
        }
        cout << "\n";
        }
    }





int main()
{
    auto in = input_data();
    auto bins = make_histogram(in.numbers, in.bin_count);
    show_histogram_text(bins, in.bin_count);

    return 0;
}